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Radiographic stage of osteoarthritis or sex of the patient does not predict one year outcome after total hip arthroplasty

Nilsdotter, Anna LU ; Aurell, Y; Siösteen, A-K; Lohmander, Stefan LU and Roos, H P (2001) In Annals of the Rheumatic Diseases 60(3). p.228-232
Abstract
OBJECTIVE: To investigate whether patients with severe radiographic osteoarthritis (OA) have a different outcome at one year after total hip replacement than patients with moderate radiographic OA. To investigate sex related differences in preoperative radiographic and self reported status and in postoperative outcome.METHODS: 184 patients (96 women) with a mean age at surgery of 71.4 years (50-92), with primary OA of the hip were investigated preoperatively and six and 12 months postoperatively with two self administered questionnaires, SF-36 and WOMAC. The radiographs were evaluated by two independent radiologists using an atlas. Minimal joint space narrowing, osteophytes, cysts, sclerosis, and deformity were assessed. A summary grade... (More)
OBJECTIVE: To investigate whether patients with severe radiographic osteoarthritis (OA) have a different outcome at one year after total hip replacement than patients with moderate radiographic OA. To investigate sex related differences in preoperative radiographic and self reported status and in postoperative outcome.METHODS: 184 patients (96 women) with a mean age at surgery of 71.4 years (50-92), with primary OA of the hip were investigated preoperatively and six and 12 months postoperatively with two self administered questionnaires, SF-36 and WOMAC. The radiographs were evaluated by two independent radiologists using an atlas. Minimal joint space narrowing, osteophytes, cysts, sclerosis, and deformity were assessed. A summary grade 0-3 was made, based on joint space, where 3 is severe OA. The reference population for SF-36 consisted of 2901 subjects matched for age and sex from the general Swedish population.RESULTS: 162 patients fulfilled the study criteria. 113 had grade 3, 47 grade 2, and two grade 1 radiographic OA. There was no difference in preoperative or postoperative pain and physical impairment between patients with moderate and severe radiographic OA. There were no sex related differences in preoperative radiographic status, or in postoperative outcome. Neither were any differences in preoperative radiographic status of OA found in patients with previous total hip replacement of the contralateral hip, compared with those who had not been operated on before. All patients, regardless of preoperative radiographic OA stage, showed significant postoperative improvement and at one year achieved a health related quality of life similar to that of the reference group.CONCLUSION: The severity of radiographic changes indicating OA often weighs heavily in the surgeons decision to perform a total hip replacement. Yet, the findings of this study emphasise that the preoperative radiographic stage of OA has no correlation with the postoperative outcome after one year. Furthermore, this study failed to detect any sex related differences in preoperative radiographic and self reported status or in postoperative outcome of hip replacement. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Annals of the Rheumatic Diseases
volume
60
issue
3
pages
228 - 232
publisher
British Medical Association
external identifiers
  • wos:000167210300009
  • scopus:0035094193
ISSN
1468-2060
DOI
10.1136/ard.60.3.228
language
English
LU publication?
yes
id
76ad9c29-84c7-4e70-b112-97dc8e4af8c7 (old id 131767)
alternative location
http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=11171683
date added to LUP
2007-07-03 16:17:28
date last changed
2018-10-03 10:26:30
@article{76ad9c29-84c7-4e70-b112-97dc8e4af8c7,
  abstract     = {OBJECTIVE: To investigate whether patients with severe radiographic osteoarthritis (OA) have a different outcome at one year after total hip replacement than patients with moderate radiographic OA. To investigate sex related differences in preoperative radiographic and self reported status and in postoperative outcome.METHODS: 184 patients (96 women) with a mean age at surgery of 71.4 years (50-92), with primary OA of the hip were investigated preoperatively and six and 12 months postoperatively with two self administered questionnaires, SF-36 and WOMAC. The radiographs were evaluated by two independent radiologists using an atlas. Minimal joint space narrowing, osteophytes, cysts, sclerosis, and deformity were assessed. A summary grade 0-3 was made, based on joint space, where 3 is severe OA. The reference population for SF-36 consisted of 2901 subjects matched for age and sex from the general Swedish population.RESULTS: 162 patients fulfilled the study criteria. 113 had grade 3, 47 grade 2, and two grade 1 radiographic OA. There was no difference in preoperative or postoperative pain and physical impairment between patients with moderate and severe radiographic OA. There were no sex related differences in preoperative radiographic status, or in postoperative outcome. Neither were any differences in preoperative radiographic status of OA found in patients with previous total hip replacement of the contralateral hip, compared with those who had not been operated on before. All patients, regardless of preoperative radiographic OA stage, showed significant postoperative improvement and at one year achieved a health related quality of life similar to that of the reference group.CONCLUSION: The severity of radiographic changes indicating OA often weighs heavily in the surgeons decision to perform a total hip replacement. Yet, the findings of this study emphasise that the preoperative radiographic stage of OA has no correlation with the postoperative outcome after one year. Furthermore, this study failed to detect any sex related differences in preoperative radiographic and self reported status or in postoperative outcome of hip replacement.},
  author       = {Nilsdotter, Anna and Aurell, Y and Siösteen, A-K and Lohmander, Stefan and Roos, H P},
  issn         = {1468-2060},
  language     = {eng},
  number       = {3},
  pages        = {228--232},
  publisher    = {British Medical Association},
  series       = {Annals of the Rheumatic Diseases},
  title        = {Radiographic stage of osteoarthritis or sex of the patient does not predict one year outcome after total hip arthroplasty},
  url          = {http://dx.doi.org/10.1136/ard.60.3.228},
  volume       = {60},
  year         = {2001},
}